Composite by-pass valve and fluid transitive appliance



July 18, 1950 E. NlEDERER, JR., Erm. 2,515,252

COMPOSITE BY-PASS VALVE AND FLUID TRANSITIVE APPLIANCE Filed Jan. 2,1945 8 Sheets-Sheet 1 July 18, 1950 E. NIEDERER, JR., ETAL 2,515,252

- COMPOSITE BY-PAss VALVE AND FLUID TRANSITIVE APPLIANCL;

Filed Jan. 2, 1945 S SheetsSheet 2 July 18, 1950 E. NIEDERER, JR., ETAL2,515,252

COMPOSITE BY-PASS VALVE AND FLUID TRANSITIVE APPLIANCE Filed Jan. 2,1945 8 Sheets-Sheet 5 j; V 10 .1... l

/l TT OHNE Y July 18, 1950 E. NIEDERER, JR., AL 2,515,252

COMPOSITE BY-PAss VA FLUID TRANSITIVE APPLIA Filed Jan. 2. 1945 8Sheets-Sheet 4 July 18, 1950 E. NIEDERER, JR., ErAL 2,515,252

c PosITE -PAss VALVE AND UID TRA TIVE APPLIANCE Filed Jan. 2. 1945 8Sheets-Sheet 5 'gef 'f from/fr July 18, 1950 E. NIEDERER, JR., ETAL2,515,252

COMPOSITE BY-PAss VALVE AND FLUID TRANSITIVE APPLIANCE Filed Jan. 2.1945 8 Sheets-Sheet 6 July 18, 1950 E. NIEDERER, JR., ETAL 2,515,252

COMPOSITE BY-PASS VALVE AND v FLUID TRANSITIVE APPLIANCE Filed Jan. 2,1945 .8 Sheets-Sheet 7 July 18, 1950 E. NIEDERER, JR., ET AL 2,515,252

COMPOSITE BY-PASS VALVE AND 4 FLUID TRANSITIVE APPLINCE Filed Jan. 2,1945 8 Sheets-Sheet 8 ylllllllllllZ//l/l/l//l v ////lll l Patented July18, 195.0

UNITED STATES PATENT OFFICE COMPOSITE BY-PASS VALVE AND FLUID TRAN SITIVE APPLIANCE Edward Niederer, Jr., Bridgeport, and Otto J. Hegedus,Fairfield, Conn.

14 Claims.

This invention relates to appliances attachable in a pipe line forconditioning or being conditioned by a fluid that flows in the line andthrough the appliance. Certain features of the improvements are ofparticular advantage in automatic gas pressure regulating appliancessuch as the regulators commonly installed in house lines to protect gasburners fed by the line from uctuations of gas pressure arising in themains or arising from pulsating operation of the meter through which thehouse line is fed.

The present day practice in installing and servicing gas pressureregulators is to provide the body or casing of the regulator with aninlet and an outlet usually threaded or otherwise adapted for pipingconnection so that the regulator can be installed in a house line in amanner to fill a gap or a break in the piping. This manner ofinstallation necessitates breaking the continuity of the conduit whenfor any reason the regulator must be removed from the pipe line forinspection or repairs. This incurs dangerous 'andinconvenientinterruption of the gas supply service unless some new appliance istemporarily installed in place of the removed regulator or unless atemporary pipe coupling is installed to bridge the gap leftjopen in thepipe line. Either of these practices is time consuming and inefficientand makes servicing of such equipment costly and burdensome.

A general object of the present invention is to make unnecessary thereplacing of a gas pressure regulator by any form of temporary equipmentwhen the regulator, or other fluid transitive appliance, must be takenfrom the line and removed to a service station for inspection or repair.

A related object is to avoid any interruption of the house service fedby the pipe line When a gas pressure regulator or other fluid transitiveappliance is opened for inspection or repair without removing suchregulator from the pipe line.

A further object is operatively to associate in a unitary structureadapted for installation in a pipe line, both a gas pressure regulator(or any other kind of fluid reactive device) and a manually settablevalve serving. when set in selectively different positions either tofeed the pipe line conducted flow of fluid through the regulator or to.shunt such flow of iiuid past the regulator without permitting it toenter the regulator.

A further object is to provide the above mentioned manually settable ordistributor valve with a still different set position to which itoptionally may be vturned and thereby cut-off all flow of ,gas orptherfluid from the supply pipe to both the appliance and the house line, aswell as all backward escape of gas out of the house line.

A further object is to make a gas pressure regulator or other fluidreactive section of the improved appliance readily removable from adistributor valve containing section thereof so that the sectioncarrying the distributor Valve can remain installed in the pipe linewhile the section carrying the pressure regulator is removed forinspection or repair. As will be clear from objects stated in theforegoing the distributor valve is desired to be manually so settable onsuch occasi-on that escape of gas from the pipe line into the room willbe precluded while the pressure regulator section of the appliance isabsent.

A further object is to provide an improved gas pressure actuateddiaphragm and means for its peripheral support in the form of acomposite unitary structure or sub-assembly thereby to make itcontributory to the other foregoing objectives. The present improvementsalso aim to make such improved diaphragm more easily removed from andreplaced in the appliance as a, unit for convenient inspection andrepair, and provide better protection for increasing durability of thediaphragm when installed.

It is also an object to provide the diaphragm with a pressure operatedvalve disc capable of being assembled and disassembled in a specializedmanner particularly suited to the novel structural organization of theimproved regulator.

A still further object is to equip the improved appliance with a valvehaving plural distributing ports adapted to perform the flow governingfunctions above described, and specifically to incorporate such ports ina rotary valve plug which may be constructed to have its axis ofrotation in various angular relationships to the inlet pipe and theoutlet pipe while said pipes may also bear various angular relationshipsto each other.

The foregoing and other objectives are referred to in the followingdescription of preferred embodiments of the invention in whichdescription reference is had to the accompanying drawings wherein:

Fig. 1 is a view in elevation showing the outside of one form of a fluidtransitive appliance incorporating the' present invention.

Fig. 2 is a view taken mostly in section on the plane 2,-2 in Fig. llooking in the direction of the arrows.

Fig. 3 is a view looking from the left at the lower portion of thestructure in Fig. 1.

lFig. 4 is a plan view taken in section on the Fig. is a plan view takenin section on plane 5 5 in Fig. 2.

Fig. 6 is a plan view taken in section on the plane 6-6 in Fig. 2.

Fig. 7 is a plan view taken partially in section on the plane 'I-'I inFig. 2.

Fig. 8 shows: the" valve plug f detached viewed from the-.leftin Fig.2.- l

Fig. 9 shows the same detached valve plug viewed from the right in Fig.2. Fig. 10 is a view similar to Fig. 1 showing a modified form of fluidtransitive"appliancedncorpoi-ating similar and additional improvements;

Fig. l1 is a view taken in section orifthe vertical plane Ii-iI in Fig.l0 looking in therclire'ction.`

of the arrows.

Fig. 12 is a plan view taken in section on` theA plane lil-I2 in Fig.l1.

Fig. 13 is a plan viewttaken in section on the plane I3`I3fin Fig. 1l.

Fig. 14 is a plan View taken insectionfon the plane ill-44 in Fig. 11.

Fig. l5 is a plan View taken in section on the plane i-IE in Fig. 11.

Fig. 16 is an enlarged fragmentary view of the lil."

Fig. .21 is a view similar to vview Il except that the axis of. thevalve vplug is perpendicular to the vertical axis of the regulator.

Figs. 22, 23. and 24, .corresponding respectively to Figs. 18, 19and-20, show modified ports in the valve plug positioned .forrespectively, feeding gas through the regulator, .by-passingtheregulator, and cutting oil all escape of gas from both the inlet andoutlet piping connections of the valve body.

Fig. 25 is a view similar to Fig. 21 except that the inlet pipe isinline with the vertical axis of the regulator.

Figs. 26, 27 and 28correspond respectively with Figs. 22, 23 and2lland'show the ports of the valve. plug turnedV to positions forrespectively,

passing gas through the regulator, by-passing the regulator, and cuttingoff escape of gas from both the inlet and outletpiping connections ofthe valve body. l

Fig. 29 is a view similar to Fig. 17 except that the inlet and. outletpipes are perpendicular to` each other. Figs. 30, 31 and 32 areperspective cut-away or sectional views corresponding respectively toFigs. 18, 19 and 20 showing modified ports in the valve plug turned topositions for respectively, passing gas through the regulator, by-passing the regulator, and preventing the escape of gas from both the inletand outlet piping connections of the valve body.

Fig. 33 is a view similar to Fig. 29 except that the axis of the valveplug is aligned straightaway with the outlet pipe.

Figs. 34, 35 and 36 are perspective'cut-away or sectional views showingmodied ports in the valve plug turned' to positions for respectively, n

4 regulator, and cutting oil all escape of gas from both the inlet andoutlet piping connections of the valve body. l

Fig. 37 is a view corresponding to Fig. 33 except that the inlet pipe isin alignment with the vertical axis of the regulator.

Figs. 38, SSB-and 40 arefperspective cut-away or sectional viewsshowingLmodii-led ports in the valve plug turned to positions forrespectively passing gas through the regulator, by-passing theregulator, and blocking the escape of gas fromzboth'theinlet and outletpiping connections of the valve body.

All arrowsnot otherwise designated throughout the iigures of thedrawings indicate the direction of owof gas or other uid that isinvolved in the operation'of'our improved composite bypass valve andpressure regulator.

In the form of the invention shown in Figs. 1J to -9, inclusive, theinlet pipe IU may run from thesupply main or= from-an ordinaryresidental gas meter (not'shown), and the outlet pipe. Il

may carryA gas tosome gasburning householdl appliance such as a cookingrange, water heater, house heater or the like (not shown), wherein thegas suppliedl through the. house pipe line Iile-II is consumed. Each ofpipes II] and II is shown to be rigid and in supporting threadedengagement with thebody I2 of a distributor valve which valve is4.indicated as a whole by I3 and comprises the lower. section of aunitary gas conditioning appliance or automatic gas pressure regulatorembodying the present invention. A second or superimposed section ofsaid appliance is designated I as a whole and serves as a bonnet forvalve I3 removable from the top portion of valve body I2 tolwhich itpreferably is coupled or joined by threaded engagement at I5. Lessconvenient kinds Yof detachment permitting coupling means might beemployed such as mating flanges on both the valve and regulator sectionspenetrated byremovable bolts for holding them together, like those showninFig. 2 and hereinafter described for. fastening together separablesections ofthe regulator housing itself.

Regulator section.. lily is comprised of a lower cup-shaped casing I8andan upper inverted cupshaped lhousing cap I9. Casing I8 has a oor wall29 at the junction of its upper cylindrical portion and its lower,hexagonal, internally, threaded portion 2l which latteris suited to beengaged by a large wrench for screwing the regulator section I 4- ondand off from the valve section I3. To insure gas rtightness at thejointbetween floor wall 20and the top surface of. valve body I2 a soft gasket22. is interposed. Both this gasket and the floor wall 2l! areperforated by a circular series of registeringapertures 23 givingpassage for the gas between the. regulator chamber 26 and an annularchannel 2l sunkv from the top surface of valve body. I2.v Centrally of.the annular channel 21 in valve body I2l there is a cavity. or well 28,which is isolatedfrom channel 21 by the gasket 22, and a smallerregistering aperture 30 in the fioor wall 20. The latteraperture isbordered by a .nicely ground valve seat 3| toward. and away fromwhichthe valve disc 32 is automatically moved in' accordance with changes inthe pressure of 'the gas or other uid present in regulator chamber 26.

The up and down movements of valve' disc 32 are effected by diaphragm35i To a central portion" of this diaphragm thevalve disc 32 is attachedby a depending .valve Astem 36 whose upper threaded end Areceivesthe'top and'bottom-'clamp nuts 31 and 38 which squeezevthe top andbottom disc washers 39 and 40 firmly against opposite surfaces ofthecentral sectionofA diaphragm 35.

Diaphragm 35 may be of any suitable material such as specially treatedleather.v According to the present improvements its peripheral margin issandwichedpermanently between a mounting plate annulus 4I and a stiffclamp ring 42 held together by means of a series of screws 46 and nuts4l. The mounting annulus 4I is suiciently larger in girth than the clampring 42 to be received and iirmly sandwiched between a coupling ange 48on regulator casing I8 and a mating flange I9 on housing cap I9 with theassistance of gas tight gasket washers 50, '50, Ifastening screws 5I,and nuts 52.- Thus by the removal of screws 5I and housing cap I9, themounting annulus 4I is freed to permit diaphragm 35 and its integrallyassociated parts to be separated as a unit from regulator casing I8 andthereafter to be removed completely from such casing whenever it isdetached from .the valve stem 36 by unscrewing nut 3l' from stem 36. Inkeeping with conventional gas regulator yconstruction, a sprinfr coil 55is under axial compression between disc washer 39 and a plug stud56which has threaded engagement with a vertically disposed tubular bearing'51 xed in the top of housing cap I6 and opening upward therethrough togive access to a screw driver for turning stud 56 to dierent verticalpositions thus adjusting tension in spring 55. A screw cap 58 covers thetop of the opening through bearing 51 and keeps out dirt. The customaryvent to atmosphere from the space above diaphragm 35 in the housing capI9 is alfordedthrough a small hole 59 in the wall of the housing cap.

Figs. 1, 2 and 3 show one of, a number of possible varying dispositionsin -angular relationships of the inlet and outlet pipe lIII and II toeach other as well as to thev vertical axis of the regulator appliance.In these particular figures the inlet and outlet pipes are alignedstraightaway and are at right angles to thevertical axis of theregulator appliance while the ported rotary plug 62 has its axis ofrotation coincident with the vertical axis of the appliance. In keepingwith objectives of the invention, plug 62 turns in a gas-tight conicalseat 6I in the valve body I2 and contains three relatively isolated-ports consisting of a straight crosswise port 63,'an elbow port 66, anda iiute port 65. Valve body I2 is provided with a passageway l68communicating with the outlet pipe I I. Valve plug 62 is provided with aT-handle 69 extending outside the valve body for manual turning and isfastened against accidental turning `in Whatever position it is manuallyset by the upward axial pressure thereagainst of a lock cap I0 havingthreaded engagement with the Valve body.

Before proceeding'to a description of modied constructions, theoperation of the form of the invention illustrated in Figs. l to 9,inclusive, may be explained as follows: In service, valve plug 62normally remains set in its rotary position of Fig. 2 whereby gasarriving through inlet pipe IU is led through passageway 66, plug port66, well 28, apertures 29, 30, (in proportion to the extent of openingof automatic regulator valve Tl- 32) thus into regulator chamber 26 andback down through apertures 23, channel 2'I, passageway 6l, plug port65, passageway 68 and outlet pipe II. In usual manner, excessive gaspressure in regulator chamber 26 will flex diaphragm35 upward so thatstem 36 will liftvalve` disc 32 thereby automatically toreducethe-passage for gas between same and the valvey seat 3I. Thiscauses less and less gas to ow into chamber26 until the gasI pressurevtherein becomes normal again. As this occurs, spring 55 assists inautomatic .reopening of valve 32 tosuch point as will keep gas pressurein chamber 26 at a substantially constant pressure. i

When now it is desired or necessary to gain' access to the insideworking parts of the regulator I4, it is not necessary according to thepresent invention to separate the entire appliance body fromits'threaded connection to pipes I0 and Il for removing the regulatorfrom the pipe line. Instead, the locking cap nut 'I0 is loosened'sufciently to free valve plug 62 so that it may be turned by means ofits T-handle 69 to either of two different' positions representedrespectively in Figs. 19 and 20 after whichcap nut 'I0 is retightened tohold the valve plug in such different set position,

In both of said differentrotary positions of the valve plug ilow of gasto and from both the channel 2l and the well 28 is completely cut off.

l In the position of valve lplug shown in Fig. 19

gas is permitted to i'iow from inlet pipe I0 through passageway 66,valve port '63, direct to passage-v way 68 and outlet pipe II. Thiscontinues uninterrupted iiow of gas, at pressure which now however isunregulated, through the pipe line;` Thus the flow of gas bypassesregulator chamber 26 without entering the same.

In Fig. 20 both passageway 66 and passageway 66 are blind-ended byunported surface portions of valve plug 62 so that gas is not onlyprevented from traveling beyond passageway 66 but is also prevented fromescaping backward through passageway 68 out of the house line pipe II.This avoids annoyance from disagreeable odors that would otherwiseresult from vagrant escape of gas.A

In the positions of the valve plug in either Figs; 19 or 20 a workman isfree to unscrew the regulator section I4 from the valve body I2 and takeit away toa service shop for repairs. Meanwhile no gas will escape fromthe'pipe line and it is optional whether gas from inlet pipe I0 shallflow on through or be cut oi entirely from the outlet pipe II. Thusinservicing, the pipe line need never be broken as a conduit in a way torequire the temporary insertion of coupling pipe or of some substituteappliance in order to prevent interruption of service in the house line.Should it be desired to remove diaphragm 35 A alone, instead ofunscrewingthe regulator sec-yi tion I4 as a whole from the valve bodyI2, screws 5I may be removed permitting the housing cap I9 to separatefrom the lower casing I8 of the regulator section. Then the diaphragmcan be separated from valve'stem 36 by removing the top nut 31 from thevalve stem. With the valve disc 32 still left in awell 28, housing capI9 may then be temporarily restored and the diaphragm taken away andrepaired or [replaced at convenience by permanent installation ofanother diaphragm. l l

After inspection or repair of the regulator locking cap nut 'I0 willagain be loosened and the valve plug '62 restored to its position shownin Fig. 2 thus again establishing theregulator oper; atively in the pipeline so that it will perform its function of regulating pressure'of thegas ylo'wfing therethrough. Locking cap nut I6 will again be screwed uptightly` to hold .the valve against'-L accidental; displacement 'from`this normal service position'. Y

Figs: "to 16, inclusive, the'sameangular relationship of inlet' pipe,outlet pipe, and valve p1ug"axis'.is*shown in a modified formof auto-Imaticgasv pressure regulator incorporating improvedfeatures both'similar and 'additional to those illustrated in Figs. 1 to 9, inclusive:

Elementscorresponding in function to those hereinbefore described aredesignated in Figs. 10"to'16, inclusive, by corresponding referencenumerals primed,l so that it becomes. necessary only todescrib'ei'ndetail those'features of construction and arrangement in themodification which differ functionally from the constructionillustratedin Figs. 1 to 9,V inclusive. These differences reside mostlargely in the followingfeaturesamodied construction for separablyjoining or. coupling together the modified lower casing I8 and thehousing cap I9 in amanner to` pro# tect, instead of. exposing, theoutside edge ofthe diaphragm 35', and modified assemblage constructionoi the diaphragm operated pressure regulating valve l32 includingmodified construe` tion of its valve seat"3I. In the modified form oflower casing i8 arcuate apertures 23, provide more spacious gascommunication between regulator chamber 26' and the annular well 2l"than do the holes 23 in Fig. 5.

A To accomplish the objective of protecting the usually exposedoutermost; edge of a fluid pres sure. responsive diaphragm againstdrying out, absorbing deleterious `fumes, etc., the lower lcas--ingnISis provided with a threaded counterbore 'I4 intowhichscrewsalthreadedrabbet I5 formed on the housing cap I9". Thus theperipheral margin of diaphragm 35'n1ay be .sandwiched between rigidclamp ring 42' and a rigid clamp ring 4|'of similar outsidediameter,Vheldtogether by a series of screws 46' which have threaded engagementvwith tapped `holes ,inv the bottom clamp ring 4I' and vprojectdownward'therebe-` yond to be received like dowels in a circular seriesof blind-.ended clearance holes 43 sunk from the planar annular surfaceof'counterbore Trl.' Thus when soft gasket washers, as 50', are placedabove and below clamp. rings 4I and 42" the marginal portion of thecomposite diaphragm unit may be clamped firmly downward against thebottom of counterbore M by the pressure of rabbet. lthereon whenthe.housing cap I9' is screwed tightly down, the engagement of screws 4Bkwith the dowel holes 43' preventing the dia# phragm from being turnedby the rotary screw ingdown movement of the housing cap and the gasketwashersV 55 making a gas tight seal preventing upwardileakage of gasoutward ol regulator chamber 26..

Tdmake it 4r'ios'sible. to, remove' or replace the valve seat 311 thelatter isvformed on a separable bushing 33 which 'has threadedengagement with a centralaperture in the iioor wall 26 of the lowercasing I8' of the regulator. The bottom enlarged head of this bushinghas external ats accessible for applying a wrench when casing I8 isremoved from the valve body I2.

VTo make it unnecessary to' remove the valve stem 36.. fromdiaphragm.35.'l when 'it is desired to take'the latter out :of orawayfrom' the appliance, the Valve disc 32 is made removable from'stem SBbYgiving a flat sided hole in the former a snug slide'v ltj on a' fiattedportion of shank 'I6 of the lattenjAv nut 11;' having threadedlengagement with thelower endv of' shank 16-,

8f tlirou'glithemedium' of agas `tight seal washer 'IBfthrustfs'v valvedisc 32 firmly upward against a thrus'tfshoulder 79' onstem 3S" at thetop end of'shan-ki-'Il` whereby 'the-*valve disc is fixed in readilyremovablerelation` to stem 36'. Valve disck s2v isheld `from turningl byapplying a wrench=to itsilat sidedA hub 34 while nut 'I1 isbeing=tightened or-loosened. A collar 38 seated against anothervshoulder on stern 36 takes the pla-ceo'fthe bottom clamp nut`38 ofFigs. lito Sand the stern 36' isremovable from diaphragm 35'? whendesired by removing the' to-p clamp nut 3i fro'rn'the top threaded endof the stem. Gastight seal around'stem' 36 is aorded by a-"soft gasketwasher 44 squeezed between disc washer 40? and collar 38'. Y f

Thelower casing I8 and housing cap I9 are advantageously made of castmetal while portions ofthe corresponding partsr I8 and I9' are suited-toproduction from drawn sheet metall In'Figs; 1li' to 16, the screw cap`58 contains vthe ventl holes'ff and threaded stud 56 vhas a long venthole from end to Vend through which the spacefabovediaphragm 35 is givencommunication withA ambientfair. The bottom end of stud 56 takes thethrust ofand adjustably regulates the axial ltension in valve openingspring 55.

Figs. 17` to 40 inclusive, illustrate devious arrangements offthe threeports in the rotary plug of the by-passv or distributingV valve suitedto correspondingly differentl angular relationships of inletf'pipe tooutlet pipe to axis of vthe valve plug: i

ln'zFigs. 17to-20, inclusive, the ports of the valve plugare numbered asin Fig. 11l andthe corresponding function of4 the modified forms ofthese valve plugports invarious figures of the drawings-vin which theyAappear will clearly belunderstoodffrom thesystem of reference numeralsemployed; In this system the samenal two -digits in the referencenumeral are used to designateA the same or corresponding valveplug portor valve bodyA passageway. The one-hundred series of f such referencenumerals are appliedto Figs. 22' to 24. Theftwoehundredseries 'ofsuohreference knumerals are applied to Figs'. 2l5to 28.-The'three-hundredlsuch seriesof numeralsare applied to Figs; 30 to 32.The fourhundred asuch `.series of numerals are applied to Figs. 34to.:36. TheA live-hundred such series of numerals .areapplied'to Figs;38 to`40. Thus'b-y reading said vdifferent hundred series of numeralsin-pl-ace of'the reference numerals 23', 63', 64', '65', 66', and 5l' inthe, foregoing description of operation having reference to Figs. 11,18; 19, and` 20 the operation and course'` of: gas flow through: allthevarious bodyl passageways and valvez ports in Fligs. 21 to 40,inclusive, will be apparenti l It may benotedtlriat `an index 'arrow' 80may b'e embossed-` ory marked at' various convenient locations on theoutside surface of the valve-body in :various modified constructions,such -arrow being -directed-towardflats on theA4 valve adjusting handleG9 which-flats4 may be marked as indicatedatflfto showwhether the rotaryposition oflthe valve plug Iof the by-'pass -or distributor Valveis-fsuchas to feed .gas through the regulator orto Icy-pass'theregulaton or to cut orf all escape of Ygasfrorn both the inlet vandoutlet piping connections to the valve body. n

Whereasa variety of 'constructions and rela'- tionshipsfofyalve plugports are herein illuse trated v'toaid in i comprehending the@ novelprinciples'- underlying the present invention in its broader aspects, itwill be understood that the appended claimsare directed to and intendedto cover not only the particular shapes and arrangements of parts hereindisclosed but all substitutesand equivalents thereof which are fairlyembraced within the more general meaning roi the language of the claims.

We claim: I

1. A composite automatic gas pressure regulator and manually operableregulator isolating valve, including in a unitary sectional stnucture, athree-position valve comprising one section of said structure equippedtofbe insertable detachably in a pipe line and having a neck portionwith gas passageways opening therethrough, and an automatic gas pressureregulator comprising another section of said unitary structure equippedto be detachably mounted as a valve bonnet on said neck portion of saidthree position valve having fluid communication with said passageways,said passageways being so cooperatively related to said valve that inone position of the latter said regulator is isolated completely `fromall fluid communication with said pipe line.

2. A fluid transitive appliance embodying in a unitary structure adaptedfor detachable insertion in a pipe line, at least one fluid utilizingchamber, and a selective by-passing and shut-oli valve shiftable betweenat least three different positions constructed and arranged in one ofsaid positions to direct nuid flowing in said pipe line through onlysaid uid utilizing chamber, in a different one of said positions todirect fluid flowing in said pipe line only externally past saidchamber, and in a. still different one of said positions to shut-ofi'all flow of fluid through both said pipe line and said chamber, wherebyinA said still different position of the valve said chamber may beremoved from said valve without permitting escape of fluid from saidpipe line. p

3. A fluid transitive appliance embodying a hollow structure having aninlet andan outlet adapted for connection of said structure as a unit ina pipe line, partitions in said structure dividing the hollow interiorthereof into dfuid conducting passageways leading from said inlet tosaid outlet and also affording a ulid'utilizing chamber, and a. singlevalve including movable ports shiftable into and out of three diierentcommunicating relationships to said pass-ageways, one of saidrelationships passing fluid from said inlet through said chamber to saidoutlet, another of said relations-hips isolating said chamber from iiuidcommunication with both said inlet and said outlet and simultaneouslypassing i-luid directly from said inlet to said outlet, and another ofsaid relationships isolating said chamber from iiuid communication `withboth said inlet and said outlet and simultaneously isolat ing said inletfrom said outlet.

4. A fluid transitive appliance embodying a hollow sectional structurecomprising readily separable base and head sections, an inlet and outletin said base section of said structure adapted for connection in Ea,pipe line, partitions in said structure dividing the composite hollowinterior thereof into optionally usable fluid conducting passageways oneof which leads directly from said unit to said outlet, a uid utilizingchamber in the other said passageway located in said head section,automatic uid regulating devices in said chamber removable therewithfrom said -base section, and a single valve within said base sectionincluding movable ports shiftable into and out of three differentcommunicating relationl ships to said passageways, one of saidrelationships passing fluid from said inlet through said chamber to saidoutlet, another vof said relationships isolating said pressureregulating devices from fluid communication with both said inlet andsaid outlet and simultaneously passing fluid directly from said inlet tosaid outlet, and another of said relationships isolating said rpres-ysure regulating devices from uid communical lator and manually settableregulator isolatingv valve, embodying a composite unitary appliance;

tion with both said inlet and said outlet and simultaneously isolatingsaid inlet from said outlet. K

5. A composite automatic fluid pressure regustructure having threeseparable housing sections comprising, a base section equipped to: bedetachably connected in a pipe line and having an outwardly openingtubular neck, a barrel section detachably mounted on the open end oivsaid tubular neck in edgewise peripheral con-l iormity therewith, amodulating valve and a pressure responsive diaphragmv connected'to op-verate said modulating valve located in said barrel section, saidintermediate section presenting outwardly away from said base section anaccessible annular seat marginally supporting said diaphragm, and acover section comprising a' hollow dome detachably fastened to saidbarrel section in edgewise :peripheral conformity therewith.

6. A fluid transitive appliance having aluid utilizing chamber and aninlet and an outlet adapted for connection of said structure as a unitin a pipe line, and comprising va single Valvec having a stationaryhollow body with an outwardly disposed face containing an elongatedbearing bore and partitions dividing the hollow interior of said bodyinto atleast four relatively isolated passageways two of which openthrough said body face and communicate sep'- arately with the said iluidutilizing chamber and.

two others of which communicate respectively4 with said inlet and saidoutlet of the appliance, said valve also including a valve plugrotatably seated in said bearing bore and having ports,said" plugcarrying the said ports to at least three different vpositions andarranged in relation to' y said passageways so that in one of saidposi-'- 50'l tions fluid is directed through at least one of said portsfrom one of said line pipes through 7. A composite'fautomatic fluidpressure regulator andrnanually lsettable regulator isolating valve,embodying a composite unitary appliance structure having three separablehousing sections comprising, a base section equipped to bel detachablyconnected in a pipe linel and h avingi 'an outwardly opening tubularneck, a barrel section having screw threaded engagement with said basesection and thereby detachably mounted on the open end of saidtubular'neck in edge-v wise peripheral conformity therewith, amodulating valve and a pressure responsive diaphragm connected tooperate said modulating valve located in" said barrel section, saidintermediate-1 sectionpresenting outwardlyaway from said base section.an accessible annulanseat-marginally supporting lsaid diaphragm, and a.coverl section comprising. a hollowdome having screw threaded engagementwith said barrel :section and thereby detachably fastened thereto inedgevvise peripheral conformity therewith.

v-8. A composite automatic gas pressure .regulator and manually operableregulator. isolating valve, including in a unitary sectional-structure,a three-position valve comprising one section of said structure equippedto be insertable detachably ina pipe line-andhaving a neck portion withgas; passageways opening. therethrough, and an -automatic gas pressureregulator comprising another-section of said unitary structureequipped'to bedetachably mounted. as a valve bonneton said neck portionof said three-position valve having gas passageways registering withsaid neck 'passageways said .passageways being socooperativelyA relatedto said valve that in one position of the latter `said yregulator isisolated completely'from -all fluidcoinmunication with said ipipelline,and said automatic gas pressure. regulator including=a valve seathaving screw threaded engagement with one of said structure sectionsthereby toibefremovable therefrom.

`9..A composite automatic gas pressure regulator-and manually operableregulator isolating valve, including in a unitary sectional structure, a--three-position valvecomprising one section of said structure equippedto beainsertablefdetachablyin a pipe line and havingr aneck'portion-with gas passageways opening therethrough,and-.anautomatic-:gas pressure regulator comprising another section ofsaid unitary structure equipped to be detachably mounted .as a valvebonneton said neck'portion o-i'said three-position valve havinge gas .Ypassageways i registering with said neckfpassageways, said passagewaysbeing.- so cooperatively related .to said valve` that in one position ofthe Alattersaidregulatoris isolated completely-from .all iluidcommunica,- tion .with said pipe line, Aand Vthe fsaid automatic .gas.pressure regulator. includingfa pressure responsivevalvev located inlone of said passage Ways including a ex-ible diaphragm vandamovableuvalve member supportedfromf'and detachably. .connectedto-'saiddiaphragm.

10. .A. composite `auton'iatic gas'. pressure regulator andmanually-operable regulatorfipserlating valve, including in la unitarysectional structure, a three-.position valve comprising onesection ofsaidstructure :equipped to be= insertable: detachably inea' pipe lineand having a neck portion withl gas passageway-s opening i therethrough,and 'an automatic i gas ,pressure lregulator comprising another sectionoffsaid unitaryistructure equipped to berdetachably mountedy as; avalvebonnet on said :neck portion of A`sai-d vtl'iree-position vvalvehaving-gas passageways registering with said neck passageways, saidpassageways being so cooperatively relatedto saidA valve that inoneposition of. the lattersaid reg-ulatoris Aisolated completely fromlall iiuid communication With saidpipe line, and the said automatic gaspressure regulator including agpressure-responsive valvelocated in screw.means is turned and; said .valve member is held :from turning :byrespectively "separate wrenches. 'g2

111. A composite automatic-,gaspressureregulator and manuallyoperableregulator-isolating valve, including ina unitary sectionalstructure, a three-position valvevcomprising `onesection of saidstructure equipped to be insertable 'detachablyin a pipe line andhavingxa neck portion with gas .passageways opening-therethrough,andan-automatic gas .pressure regulator comprising: lanotherv sectionof, said unitary structure equipped-tolse -detachably mounted-as a valvebonnet onfsaidneck portion of .said three-position valve having .gaspassageways registering with-said neck passagewayssaid passageways beingso .cooperatively4 related 4to 'saidzvalve that in one.positionofvthe.latter:saidiregulator is isolated completely from allfluidcommunication with said pipe line, andthe said automatic gas.pressure regulatorfincl-ud-inga pressure responsive diaphragm, togetherwith rigid means to clampand stiffemari'rcular margin portion of said.diaphragm, said clamping lmeansbeing iirmly .butremovably lodgedbetween-said structure sections.

12. A composite automatic gas pressure regulator. and manually`voperable. regulator isolating valve, including inaunitary. sectionstructure, a three-position valve comprising one section of saidstructure equippedtobe insertable detachably in a .pipe linefand having`a neck .portion With gas ,passageways opening: therethrough, and anautomatic ...gas pressure regulator comprising another .section .of.said unitarytructurehaving fluid communicationv/ith -said passageway-s.and equipped .to bedetachably mountedas a valve bonnet onsaidneckportion of saidthree-positionv valve,.-said,passageways...beingso .cooperatively related .tosaid valve that in oneposition of thelatter` said regulatoris isolated. completely from Afluid. communication4with .said pipeline, one of .said strueturefsections having-a rtubularsidewall, andsaid. automatic lgas pressure regulator including apressureresponsive diaphragm removably supported at the junction ofsaidsections iny a manner Ito-.be` borderedand surrounded atAitsperipheral edgeby said=tubular side Wall.

13..A fluid transitive .appliance Yernbodyinga hollow .structure havingan inletand an loutlet adaptedior-connectiongof vsaid structure as aunitiin la pipe line, partitions in said structure dividing the hollowinterior thereof into iluid conducting passageways leading from saidinlet to said routlet and also affording. a fluid utilizing chambeiganda singlevalve. including a body portion .of said hollow` structurefflttedfordetachable connection to.said..chamber and a valve plugrotatably seated .in said'. body. portion containing movable portsshiitable into .and out of three. different .communicating relationshipsto said passageways, i one of said .relationships passing fluid fromsaid inletthrough said chamber to said outlet, another of .saidrelationships isolating said chamber from fluid communication with bothsaid vinlet .and said outlet I and .simultaneously passing fluiddirectlyfromsaid inlet to-said outlet, and vanother ofsaid relationshipsisolating said .chamber from .uid communication .with both said inlet.and said outlet and simultaneously isolating said .1 inlet. from saidoutlet.

14. A iiuidftransitive vappliance embodying a hollow sectional`structure Ecomprising read-ily separable Vbasez and head sections,aninlet and outlet :in said, base :section of :said structure of saidchamber and into one of said passageways 10 in said base section, and asingle valve Within said base section including movable ports shiftableinto and out of three different communcating relationships to saidpassageways, one of said relationships passing fluid from said inletthrough 15 said chamber to said outlet, another of said relationshipsisolating said pressure regulating devices from fluid communication with,both said inlet and said outlet and simultaneously passing fluiddirectly from said inlet to said outlet, and another of saidrelationships isolating said pres- 14 sure regulating devices from iluidcommunication with both said inlet and said outlet and simultaneouslyisolating said inlet from said outlet. EDWARD NIEDERER, JR. OTTO J.HEGEDUSL REFERENCES CITED The following references are of record in theI'lle of this patent:

UNITED STATES PATENTS Number Name Date 203,285 Meredith May 7, 1878529,051 Victor Nov. 13, 1894 579,432 Harrison Mar. 23, 1897 2,147,850MacLean Feb. 21, 1939 FOREIGN PATENTS Number Country Date 12,942 GreatBritain July 18, 1900

